Neural changes that produce Alzheimer's disease generally precede the first observation of symptoms by:
A)Less than 1 year
B)About 2-5 years
C)As much as 10 years
D)About 1-2 years

Question

Quizplus · Accepted Answer

Research suggests that neural changes associated with Alzheimer's disease can occur up to 10 years before the first symptoms are observed. This period is referred to as the preclinical phase of Alzheimer's disease.

Neural Changes That Produce Alzheimer's Disease Generally Precede the First